# HG changeset patch
# User Martin von Zweigbergk <martinvonz@google.com>
# Date 2019-11-05 22:06:11
# Node ID 625e7d1ffd1c7d952a372ab7e77b0bd88ee02b50
# Parent  d630c5710801d4fabedf742a42c1a236b0da8b07

repoview: wrap changelog class when filtering

The class doesn't yet do anything. I'll move the filter-aware
overrides from the changelog class over one by one to this class in
coming patches. That will leave the changelog class simpler and will
centralize more of the filtering logic to repoview. I could not
measure any performance difference.

Differential Revision: https://phab.mercurial-scm.org/D7236

diff --git a/mercurial/repoview.py b/mercurial/repoview.py
--- a/mercurial/repoview.py
+++ b/mercurial/repoview.py
@@ -221,6 +221,12 @@ def filterrevs(repo, filtername, visibil
 def wrapchangelog(unfichangelog, filteredrevs):
     cl = copy.copy(unfichangelog)
     cl.filteredrevs = filteredrevs
+
+    class filteredchangelog(cl.__class__):
+        pass
+
+    cl.__class__ = filteredchangelog
+
     return cl